21000299036

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{308827927}}^1$

素因数の和:308827948

約数の個数: 12

約数和(自身を含む): 38912318928

約数和(自身を除く): 17912019892

約数列:

[1, 2, 4, 17, 34, 68, 308827927, 617655854, 1235311708, 5250074759, 10500149518, 21000299036]

約数ペア:

[(1, 21000299036), (2, 10500149518), (4, 5250074759), (17, 1235311708), (34, 617655854), (68, 308827927)]